Used Scubapro S - TEK Spinner Spool 50Evoking the distinctive design of SCUBAPROs classic G250 second stage, these premium spinner spools are super easy to use. The key to each spools user friendliness can be found in the exclusive SCUBAPRO branded spinner discs located at the center point of the spool; the discs remain static while the spool spins and the line plays out. Consequently, the spool will not try to rotate out of your hand like normal spools do, allowing for a more secure grip